Allow specifying an output file or directory when downloading [WIP]

cli/src/action/download.rs

@@ -34,12 +34,18 @@ impl<'a> Download<'a> {
         // TODO: handle error here
         let file = RemoteFile::parse_url(url, None)?;
 
+        // Get the target file or directory
+        let target = self.cmd.file();
+
         // Create a progress bar reporter
         let bar = Arc::new(Mutex::new(ProgressBar::new_download()));
 
         // Execute an download action
-        ApiDownload::new(&file, self.cmd.password())
-            .invoke(&client, bar)?;
+        ApiDownload::new(
+            &file,
+            target,
+            self.cmd.password(),
+        ).invoke(&client, bar)?;
 
         // TODO: open the file, or it's location
         // TODO: copy the file location

cli/src/cmd/cmd_download.rs

@@ -1,3 +1,5 @@
+use std::path::PathBuf;
+
 use ffsend_api::url::{ParseError, Url};
 
 use super::clap::{App, Arg, ArgMatches, SubCommand};
@@ -23,6 +25,11 @@ impl<'a: 'b, 'b> CmdDownload<'a> {
                 .help("The share URL")
                 .required(true)
                 .multiple(false))
+            .arg(Arg::with_name("file")
+                .long("file")
+                .short("f")
+                .value_name("PATH")
+                .help("The output file or directory"))
             .arg(Arg::with_name("password")
                 .long("password")
                 .short("p")
@@ -71,6 +78,15 @@ impl<'a: 'b, 'b> CmdDownload<'a> {
         }
     }
 
+    /// The target file or directory to download the file to.
+    /// If a directory is given, the file name of the original uploaded file
+    /// will be used.
+    pub fn file(&'a self) -> PathBuf {
+        self.matches.value_of("file")
+            .map(|path| PathBuf::from(path))
+            .unwrap_or(PathBuf::from("./"))
+    }
+
     /// Get the password.
     /// `None` is returned if no password was specified.
     pub fn password(&'a self) -> Option<String> {